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Fig. 4 | BMC Gastroenterology

Fig. 4

From: Comparison of operative outcomes between monopolar and bipolar coagulation in hepatectomy: a propensity score-matched analysis in a single center

Fig. 4

Histopathological examination of thermal damage to the resected specimens. a Macroscopic findings revealed that the burned area was divided into two areas from a “white zone” to a “gray zone.” The area between the “gray zone” and tumors was recognized as the “normal zone.” The measurement of the burned area is shown with the black line. b Illustration of macroscopic findings. c The black dotted line indicates the border between the “white zone” and “gray zone.” Scale bar: 1 mm. d Hepatocellular degeneration, dilatation of the sinusoidal space, crush degeneration of Glisson’s sheath, hemorrhage, and hyperemia were observed in the “white zone.” Scale bar: 250 μm. e Thermal damage length in the resected specimens caused by hemostatic devices. Horizontal lines denote median values; boxes denote the interquartile range; whiskers denote minimum and maximum values. f Incidence rate of ascites. g Incidence rate of intra-abdominal abscess. Asterisks indicate significance (*P < 0.05)

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